2024-01-03 06:06:00
food
Bananas have different health effects depending on their color… What is special regarding ‘diet’?
Reporter Lee Ara
Entered 2024/01/03 15:06
Green bananas are rich in resistant starch, which suppresses appetite, and are helpful for dieting./Photo = Clip Art Korea Bananas are green when unripe, but over time, spots appear and turn brown. Interestingly, bananas have different health effects depending on their color. Learn more regarding the health benefits of bananas.
◇Green bananas, rich in resistant starch
Unripe green bananas have 20 times more resistant starch than yellow bananas. Resistant starch is good for dieting by maintaining a feeling of fullness for a long time, suppressing appetite and promoting metabolism. In particular, belly fat usually occurs when blood sugar levels rise quickly, but resistant starch is converted to glucose slowly, so it does not raise blood sugar levels quickly, helping to get rid of belly fat. In addition, it is good for gastrointestinal health and prevents cancer. In fact, a study from the University of Brasília found that eating one green banana every day reduced gastrointestinal symptoms such as diarrhea and constipation and lowered the risk of colon cancer.
◇Yellow bananas, high in vitamin C
When green bananas ripen, they become yellow bananas. People who have difficulty digesting food should eat yellow bananas. This is because as bananas ripen, resistant starch changes into sugar that is easily absorbed. Additionally, as bananas ripen, they become richer in minerals that are good for the body, such as vitamin B, vitamins A, C, iron, magnesium, and potassium. In particular, yellow bananas have a higher content of vitamin C, a representative antioxidant that removes free radicals, than bananas of other colors.
◇Brown banana, helps boost immunity
As yellow bananas ripen further, they develop brown spots, which act as immune system boosters. Brown bananas are rich in ‘tumor necrosis factor (TNF)’. Tumor necrosis factor is a substance that increases immunity once morest cancer. In fact, according to a study at Teikyo University in Japan, bananas with brown spots were eight times more effective in strengthening white blood cells than green bananas.
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